Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Ethanol fermentation in a continuous tower fermentor. [Saccharomyces cerevisiae]

Journal Article · · Biotechnol. Bioeng.; (United States)
A mutant of Saccharomyces cerevisiae, which forms large, multicellular flocs in liquid culture, rapidly fermented media containing high concentrations of glucose (100-180 g/L) in a continuous nonaerated tower fermentor at 30/sup 0/C. The fermentor operated continuously for seven months. Batch and tower fermentor data were fitted to a kinetic model incorporating linear ethanol inhibition and Monod dependence on glucose. Conversion, ethanol yield, and ethanol productivity were related to the apparent fermentation time for initial glucose concentrations of 130 and 180 g/L. Productivities of 8-12 g ethenol/L h were achieved through the yeast bed giving conversions exceeding 90% of the theoretical yield.
Research Organization:
Washington State Univ., Pullman
OSTI ID:
6318018
Journal Information:
Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 26:7; ISSN BIBIA
Country of Publication:
United States
Language:
English